Re-source configuration after update
Always ignore gem directories
Refactor PATHs

- Try to add DRY PATHs...adding vendor/gems/bin in the hopes it will be
  listened to upon new directories being `cd`-ed into
- Re-order PATHs by importance of language
Do not define CC in the zshenv
Use autoenv on all machines.
Don't force the bin/ dir when installing RubyGems
Use tmuxinator with tmux